Le mercredi 06 juillet 2005 à 20:47 +0000, jalkadir@xxxxxxxxxx a écrit :
> I am trying to hook the 'clicked' signal of a button to a callaback
> function that receives a std::string value that will be displayed in a
> Dialogbox. I have tried this:
>
> callback function
> ~~~~~~~~~~~~~~~~~
> gboolean MessageInfo(std::string& msg){...}
>
>
> g_signal_connect(GTK_OBJECT(btnCreateAccount), "clicked",
> GTK_SIGNAL_FUNC(MessageInfo), NULL);
>
> But this does not work, can anyone help?
In the gtk docs, you can find:
"clicked" void user_function (GtkButton *button,
gpointer user_data);
That is, the first parameter of your callback is the button which was clicked, unless you use g_signal_connect_swapped.
SQo you have two solutions, either, you change the signayure of MessageInfo:
gboolean MessageInfo(GtkButoon* btn, std::string& msg){...}
or you use g_signal_connect_swapped:
g_signal_connect_swapped(GTK_OBJECT(btnCreateAccount), "clicked",
GTK_SIGNAL_FUNC(MessageInfo), NULL);
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